.main {
    padding: 90px 0;
}

.main .container .main-box {
    display: flex;
    gap: 20px;
}

.main .container .main-box .main-sidebar {
    flex: 1;
}

.main .container .main-box .main-sidebar .sidebar-list {
    display: flex;
    flex-direction: column;
    border: 1px solid #ccc;
    border-radius: 5px;
    overflow: hidden;
}

.main .container .main-box .main-sidebar .sidebar-list .sidebar-item {
    border-bottom: 1px solid #ccc;
    width: 100%;
    text-align: center;
    cursor: pointer;
}

.main .container .main-box .main-sidebar .sidebar-list .sidebar-item:hover {
    color: var(--text-primary);
}

.main .container .main-box .main-sidebar .sidebar-list .sidebar-item.active {
    background-color: var(--bg-primary);
    color: #fff;
}

.main .container .main-box .main-sidebar .sidebar-list .sidebar-item span {
    display: block;
    padding: 10px 0;
}

.main .container .main-box .main-sidebar .sidebar-list .sidebar-item:last-of-type {
    border-bottom: 0;
}

.main .container .main-box .main-content {
    flex: 4;
    border: 1px solid #ccc;
    border-radius: 5px;
    color: #333;
}

.main .container .main-box .main-content  .content-head {
    padding: 15px 20px;
    border-bottom: 1px solid #ccc;
    font-size: 16px;
}

.main .container .main-box .main-content .content-main {
    padding: 20px;
}

.main .container .main-box .main-content .content-main .form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 350px;
    width: 100%;
    margin: 0 auto;
}

.main .container .main-box .main-content .content-main .form .form-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
    font-size: 15px;
    width: 100%;
}

.main .container .main-box .main-content .content-main .form .form-item input {
    border: 1px solid #ccc;
    outline: 0;
    border-radius: 3px;
    padding: 0 10px;
    height: 35px;
}

.main .container .main-box .main-content .content-main .form .btn {
    background-color: var(--bg-primary);
    color: #fff;
    border-radius: 5px;
    border: 0;
    outline: 0;
    width: 100%;
    height: 35px;
    cursor: pointer;
    margin-top: 10px;
}

.main .container .main-box .main-content .content-main .form .btn:hover {
    background-color: var(--btn-hover);
}

.main .container .main-box .main-content .content-main .form .btn:active {
    background-color: var(--btn-active);
}